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用超塑性锌铝共析合金等温挤压注塑模的型腔是一种快速制模技术,只要制作一个凸模就可以得到型腔复杂、尺寸精确、表面粗糙度低的注塑模,它特别适合于小批量的试制生产。目前由于对它的认识不足,常把超塑性等温挤压工艺作为一种复杂的高温低速操作技术,并要求在具有加热垫板与低速压力机的条件下才能进行,因而得不到较迅速的推广应用。近年来我们在生产中摸索到一种简单迅速、易于采用的超塑性锌铝共
The cavity of isothermal extrusion die with superplastic zinc-aluminum eutectoid alloy is a kind of rapid prototyping technology. It is suitable for injection mold with complex cavity, precise size and low surface roughness, as long as making a punch Trial production in small quantities. At present due to its lack of knowledge, often the superplastic isothermal extrusion process as a complex high-temperature low-speed operation technology, and requires a heating pad and low-speed press conditions can not be carried out, and therefore can not get faster Promote the application. In recent years we found in the production of a simple and quick, easy to use superplastic zinc aluminum alcoa